BLONDER TONGUE Agile Audio / Video Demodulators AD-1 Series

C 9 - 1 Agile Audio / Video Demodulators AD-1 Series

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The AD-1 Series includes professional quality, agile audio/video demodulators. These units provide audio and video output from any channel in the 54 to 88 and 108 to 806 MHz frequency range. The AD-1 Series is ideal for signal monitoring and signal conditioning (audio/video processing and remodulation) applications. Agile channel selection permits on-the-fly channel changes.

The AD-1 Series takes a single channel in the 54 to 88 and 108 to 806 MHz frequency range and demodulates the audio and video information. Baseband audio and video, as well as 4.5 MHz audio subcarrier and multiplex audio, are provided as outputs. Both models feature a rock solid PLL synthesized frequency control with a tuning increment of 250 kHz. Frequency selection is accomplished via front panel DIP switches. A Nyquist filter provides stable, accurate demodulation of the vestigial sideband signal. Additionally, this filter minimizes distortion and preserves the timing of the signal. Delayed AGC circuitry automatically compensates for input signal variations. The AD-1 Series utilizes a quasi-synchronous video detector that has low differential gain and minimal phase distortion. Aquadrature audio detector delivers a very low distortion audio output. Broadband multiplex audio and 4.5 MHz audio subcarrier outputs permit use in BTSC stereo applications. The AD-1 Series products are housed in a single height, 1.75" high, rack mountable, aluminum chassis.

OPTION 17 - Sub-band Input

This option provides extended frequency range for sub-band input channels (T7 through T13). Arear panel switch allows configuration of the demodulator for standard VHF/UHF (54-88 and 108-806 MHz) channels or sub-band (7-49 MHz). When invoked, this option block converts the sub-band channels to VHF channels 7 through 13 (selecting input channel VHF 7 will select sub-band channel T7).

OPTION 20 - Digital Control, Serial RS-232

This option accepts a serial RS-232 data input to change the input frequency of the demodulator, select frequency plans (standard, HRC, IRC) and to determine the status of the demodulator (frequency, frequency plan).

FEATURES:

• 250 kHz Tuning Increment -Supports Broadcast, CATV, and UHF Channels, Including HRC and IRC Assignments • Nyquist Filter Ensures Stable Accurate Demodulation • AGC Circuitry Automatically Compensates for Input Level Variations • Quasi-Synchronous Video Detector Provides Superior Linearity • Quadrature Audio Detector DeliversVery Low Distortion • 4.5 MHz Audio Subcarrier andnBroadband Multiplex Audio OutputnPermits Use With TSCnStereo Applications • Rack Mount, 1 EIA (1.75") Spacing,nRugged Aluminum Chassis • ULListed

ORDERING INFORMATION:

AD-1B 5932 Agile Audio/Video Demodulator 54-88/108-806 MHz NOTE: No Options

OPTIONS:

AD-1 OPT-20-FIK 5920A AD-1 Option: Digital Control, Serial RS-232 Field Install Kit

AD-1-OPT 09 59259 AD-1 Option: Balanced Audio, 600 Ohm Add

AD-1-OPT 17 59257 AD-1 Option: Sub-Band Input, 7-49 MHz add

AD-1-OPT 20 59250 AD-1 Option: Digital Control, Serial RS-232 add

ALSO SEE C 1 6 - 1 Agile Audio/Video Demodulator ZDM Series

FOR PRICES SEE PRICE SHEET